Power adapter



FIG. 1 is a perspective view of the power adapter, showing the new design;

FIG. 2 is a front elevation view of the power adapter;

FIG. 3 is a rear elevation view of the power adapter;

FIG. 4 is a left side elevation view of the power adapter;

FIG. 5 is a right side elevation view of the power adapter;

FIG. 6 is a top elevation view of the power adapter; and,

FIG. 7 is a bottom elevation view of the power adapter.

The broken lines in the drawings illustrate portions of the power adapter that form no part of the claimed design. 

CLAIM The ornamental design for a power adapter, as shown and described. 